The Pneumatic Dense-Phase Ash Conveying System is specially designed for conveying hot, abrasive ash. Macawber Engineering Systems India Pvt. Ltd. Supplies Pneumatic Dense-Phase Ash Conveying System. Macawber Engineering Systems India Pvt. Ltd. Manufactures a range of conveying system used in varied industries like Mining, Minerals, Chemicals, Steel, Cement, Foundries, Food, Soap and Detergents, Polyesters, Plastics, etc. The ash conveying system will convey bottom ash, clinkers, or fly ash from boiler beds, bag houses, or electrostatic precipitators at temperatures up to 600 F, and may be arranged in multiple of one to ten units in a single line. This system uses about 50% less power than existing fly ash conveying systems.